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RISImpact of Rotor–Stator Interaction on Turbine Blade Film Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The goal of this study is to quantify the impact of rotor–stator interaction on surface heat transfer of film cooled turbine blades. In Section I, a steady-state injection model of the film ...
A Navier–Stokes Analysis of Airfoils in Oscillating Transonic Cascades for the Prediction of Aerodynamic Damping
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An unsteady, compressible, two-dimensional, thin shear layer Navier–Stokes solver is modified to predict the motion-dependent unsteady flow around oscillating airfoils in a cascade. A quasi-three- ...
An Immersed Boundary Method for Simulation of Wind Flow Over Complex Terrain
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The accurate modeling of the wind resource over complex terrain is required to optimize the micrositing of wind turbines. In this paper, an immersed boundary method that is used in connection ...
An Experimental Study of Film Cooling in a Rotating Transonic Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Time-resolved measurements of heat transfer on a fully cooled transonic turbine stage have been taken in a short duration turbine test facility, which simulates full engine nondimensional conditions. ...
Experimental Study of Aerodynamic and Structural Damping in a Full-Scale Rotating Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Damping in turbomachinery blades has been an important parameter in the study of forced response and high-cycle fatigue, but because of its complexity the sources and physical nature of damping ...
Influence of Rim Seal Purge Flow on the Performance of an Endwall-Profiled Axial Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Nonaxisymmetric endwall profiling is a promising method to reduce secondary losses in axial turbines. However, in high-pressure turbines, a small amount of air is ejected at the hub rim seal ...
Effect of Hot Streak Migration on Unsteady Blade Row Interaction in an Axial Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an experimental study of the effect of unsteady blade row interaction on the migration of hot streaks in an axial turbine. The hot streaks can cause localized hot spots ...
Impact of Time-Resolved Entropy Measurement on a One-and-One-Half-Stage Axial Turbine Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An accurate assessment of unsteady interactions in turbines is required, so that this may be taken into account in the design of the turbine. This assessment is required since the efficiency ...
Unsteady Flow Physics and Performance of a One-and-1∕2-Stage Unshrouded High Work Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an experimental study of the flow mechanisms of tip leakage across a blade of an unshrouded turbine rotor. It shows the design of a new one-and-1∕2-stage, unshrouded turbine ...
Optimized Shroud Design for Axial Turbine Aerodynamic Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a comprehensive study of the effect of shroud design in axial turbine aerodynamics. Experimental measurements and numerical simulations have been conducted on three different ...